CN102606190A - Method and device for using downward crossing hole to eliminate outburst in mining of coal mine - Google Patents
Method and device for using downward crossing hole to eliminate outburst in mining of coal mine Download PDFInfo
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- CN102606190A CN102606190A CN2011100233544A CN201110023354A CN102606190A CN 102606190 A CN102606190 A CN 102606190A CN 2011100233544 A CN2011100233544 A CN 2011100233544A CN 201110023354 A CN201110023354 A CN 201110023354A CN 102606190 A CN102606190 A CN 102606190A
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Abstract
The invention discloses a method and a device for using a downward crossing hole to eliminate outburst in mining of a coal mine. The device for using a downward crossing hole to eliminate outburst in mining of a coal mine comprises a gas-liquid separator and an air pipe, the top of the gas-liquid separator is provided with a gas outlet, the bottom of the gas-liquid separator is provided with a liquid outlet, an exhaust passage is connected to the gas outlet, and a drainer is connected to the liquid outlet. A hole sealing pipe is connected to the side wall of the gas-liquid separator, a wall protective shock pipe is connected to one end, away from the gas-liquid separator, of the hole sealing pipe, one end of the air pipe is communicated with the wall protective shock pipe, and the other end of the air pipe is connected with a pressure air source. Using the device can obtain better mining effect, and outburst can be rapidly eliminated.
Description
Technical field
The present invention relates to colliery extinction technical field, relate in particular under a kind of colliery, also relate to simultaneously under a kind of colliery to wearing a layer hole extraction extinction device to wearing a layer hole extraction extinction method.
Background technology
At present, in Coal Production enterprise, adopting down and come extinction to wearing a layer hole, is one of outstanding important means of control coal and gas.But, down to wearing a layer deficiency below the existence of hole:
1, layer hole difficulty of construction is big to wearing down, pore-forming is poor;
2, difficult to wearing layer hole sealing of hole down, cause the hole plug of having dug during sealing of hole easily;
3, have ponding mostly to the bottom of wearing layer hole down, ponding can flood and be arranged on down to wearing layer retaining wall floral tube of bottom, hole, and gas can't be entered in the retaining wall floral tube, causes gas not to be drawn out of.
Owing to have above-mentioned deficiency to wearing a layer hole down, cause the extraction weak effect, can not well solve the difficult problem of outstanding this puzzlement Safety of Coal Mine Production of coal and gas.
Summary of the invention
The present invention provides under a kind of colliery to wearing a layer hole extraction extinction method, also provides simultaneously under a kind of colliery to wearing a layer hole extraction extinction device, in order to solve defective of the prior art, reaches the outstanding purpose of effective elimination coal and gas.
Be to realize that above-mentioned purpose, the present invention provide under a kind of colliery to wearing a layer hole extraction extinction method, comprise the steps:
1) adopt the mode of hydraulic flushing in hole to dig down in the place ahead of coal mining activity face or driving face to wearing a layer hole;
2) digging the following hole sealing tube and the ventilating pipe of in wearing layer hole, descending of getting well; Said hole sealing tube and said ventilating pipe all are deep into down to the bottom of wearing layer hole; Said hole sealing tube is positioned at down and is connected with the retaining wall floral tube to wearing a layer end of bottom, hole, and said retaining wall floral tube and said ventilating pipe are interconnected;
3) to carrying out guard aperture, sealing of hole operation to wearing layer hole down, make said hole sealing tube and said ventilating pipe and between the hole wall of wearing layer hole, be in sealing state down;
4) outwards aspirate through said hole sealing tube; Carry pressure wind to the bottom of wearing layer hole downwards through said ventilating pipe.
Preferably, the hydraulic pressure of said hydraulic flushing in hole is between 10MPa-15MPa.
Preferably, the pressure of said pressure wind is between 0.8MPa-1.2MPa.
Preferably, said pressure wind is to carry at interval, and the time of delivery of at every turn pressing wind is 3 minutes, and be 57 minutes blanking time.
Preferably, expose under the colliery to wearing layer hole and being connected with gas-liquid separator the upper end of said hole sealing tube, and said gas-liquid separator will be from carrying out automatic gas-liquid separation to wearing layer material that extract out the bottom, hole down.
Preferably, adopt cement mortar to fill sealing of hole in the said sealing of hole operation.
The present invention also provides under a kind of colliery to wearing a layer hole extraction extinction device; Comprise gas-liquid separator and ventilating pipe; The top of said gas-liquid separator is provided with exhaust opening, the bottom is provided with leakage fluid dram; Be connected with the exhaust passage on the said exhaust opening, be connected with tailrace on the said leakage fluid dram, be connected with hole sealing tube on the sidewall of said gas-liquid separator; Said hole sealing tube is connected with the retaining wall floral tube away from an end of gas-liquid separator, and an end of said ventilating pipe is communicated with the retaining wall floral tube, the other end is used for is connected with pressing wind regime.
Preferably, said tailrace is automatic tailrace.
Preferably, said ventilating pipe is connected with pressing wind regime through air line, and said air line is provided with electromagnetic valve.
Preferably, said exhaust passage is provided with the control gate valve.
To wearing a layer hole extraction extinction method, extraction is effective under the colliery of the present invention, and single hole mash gas extraction concentration can reach more than 80%, and scale is stabilized in 0.1m for a long time
3More than/the min.To wearing after a layer hole close batch extraction, only 23 days, pumping rate reached the standard of " control coal and the outstanding regulation of gas " middle extinction greater than 35% in advance, has realized quick extinction down.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of manual, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is to wearing layer structural representation of hole extraction extinction device under the colliery of the present invention;
Fig. 2 is pillar and tube sealing structural representation;
Fig. 3 is single hole extraction concentration and extraction changes in flow rate tendency chart.
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer; To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention carried out clear, intactly description, obviously; Described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
To wearing a layer hole extraction extinction method, the place ahead of at first adopting water under high pressure to be drilled in coal mining activity face or driving face is dug down to wearing a layer hole, when digging, hydraulic pressure is remained between the 10MPa-15MPa under the colliery of the present invention.Adopt water under high pressure to bore to dig down to wearing a layer hole and belong to hydraulic flushing technology, employing should technology be dug down to wearing a layer hole, can make down to wearing a layer hole periphery coal body pressure release, increases the coal body gas permeability, helps improving extraction efficient.
Down to wear layer hole dig finish after, hole sealing tube and ventilating pipe down in wearing layer hole are as shown in Figure 2 downwards.Wherein, Hole sealing tube 27 is positioned at down and is installed with retaining wall floral tube 23 to an end of wearing 20 bottoms, layer hole through pipe collar 22; Evenly offer through hole on the tube wall of retaining wall floral tube 23; Enter in the retaining wall floral tube 23 through above-mentioned through hole to the water of wearing 20 bottoms, layer hole and gas down, finally discharge via hole sealing tube 27.According to the difference of coal seam 24 thickness, can use pipe collar 22 series connection more piece retaining wall floral tubes 23, and an end of a retaining wall floral tube 21 of least significant end is the cecum of taper.Said ventilating pipe 31 is connected with a retaining wall floral tube 21 with taper cecum.The pressure wind of carrying through ventilating pipe 31 enters into the high pressure that forms the part in the retaining wall floral tube 21, and the pressure of pressing wind among this embodiment is between 0.8MPa-1.2MPa.
Block in order to prevent rock mass and/or coal body to be scattered down to wearing a layer hole, down in wearing layer hole down the guard aperture pipe carry out the guard aperture operation.Because in the coal mining industry, the guard aperture pipe comes to be maturation process, no longer its activities to be given unnecessary details here to boring protection down in digging good boring.
In order to guarantee ventilating pipe 31 and hole sealing tube 27 and to have good sealing between layer hole 20 to wearing down, to having carried out the sealing of hole operation to wearing layer hole 20 down.When sealing of hole is operated, in wearing layer hole 20, settle two baffle plates 26 downwards, and guarantee that ventilating pipe 31 and hole sealing tube 27 all pass this two baffle plates 26.Closely knitly between two baffle plates 26 be provided with the dried sea-tangle 25 of one deck, can expand after dried sea-tangle 25 suctions, its filled after expanding should the zone the space, strengthened this regional sealing effectiveness.Also be provided with one section polyurethane filling sealing of hole section 30 to the place, aperture of wearing layer hole 20 down, polyurethane is filled between sealing of hole section 30 and the baffle plate 26 has certain distance, and the pipeline section of this distance is the injection hole sealing section.Grouting Pipe 28 is passed polyurethane respectively with slurry recovering tube 29 and is filled sealing of hole section 30, be deep in the injection hole sealing section, and the height of the slurry recovering tube 29 lower end mouths of pipe is higher than the height of the Grouting Pipe 28 lower end mouths of pipe, and Grouting Pipe 28 is used for the injection hole sealing section and injects cement mortar.
After sealing of hole finishes, hole sealing tube 27 is aspirated, be communicated with under 31 pairs of the ventilating pipes to wearing 20 bottoms, layer hole and carry and press wind; Pressing wind is to carry at interval; The time of delivery of each pressure wind is 3 minutes, and be 57 minutes blanking time, presses wind to carry at interval and has both satisfied in the work pressing the demand of wind; Can not cause adverse influence yet, also help energy conservation the gas purity of extraction.At this moment; In the hole sealing tube 27 be negative pressure, is partial high pressure to wearing 20 bottoms, layer hole down, according to fluid by high pressure to the mobile characteristic of low pressure; Water, slag and gas are drawn out of along hole sealing tube 27, are connected with a plenum chamber that uses as gas-liquid separator at the top of hole sealing tube 27.Because the effect of gravity, water and slag move downward in plenum chamber, are separated with gas, and gas is taken away through the exhaust passage.Owing to before getting into the exhaust passage, just realized separating of gas and water and slag, avoided water and slag to enter into the exhaust passage, remained the unimpeded of exhaust passage, feasiblely descend to effectively improve to wearing layer hole 20 extraction amounts.As shown in Figure 3, single hole extraction concentration and extraction changes in flow rate tendency chart, single hole mash gas extraction concentration is more than 80%, and scale is stabilized in 0.1m for a long time
3More than/the min, be 10～20 times of common extraction borehole, down to wearing after layer hole 20 close batch extraction, only 23 days, the rate of taking out in advance reached the standard of " control coal and the outstanding regulation of gas " middle extinction greater than 35%, has realized quick extinction; 107 days durations are reduced than conventional drilling construction in per 1000 meters tunnels, practice thrift 7,000,000 yuan of costs.
As shown in Figure 1, to wearing layer embodiment of hole extraction extinction device, comprise a plenum chamber 8 that uses as gas-liquid separator under the colliery of the present invention, be provided with exhaust opening at the top of this plenum chamber 8, the bottom is provided with leakage fluid dram.On exhaust opening, be connected with exhaust passage 9; Exhaust passage 9 links to each other with the extraction main, the gas of extraction is transferred out fully utilize, and on exhaust passage 9, is connected with a control gate valve 10; Control gate valve 10 is used for controlling the break-make of exhaust passage 9, and then the startup of control extraction, stops.On leakage fluid dram, be connected with tailrace 7, the tailrace 7 that adopts among this embodiment is automatic tailrace, because tailrace belongs to prior art automatically, can directly buy acquisition, its concrete structure is not given unnecessary details here.Certainly also can adopt manual tailrace here.Adopt automatic tailrace, can realize regularly discharging water, help improving automatization level through setting.Simultaneously do not need the frequent operation that discharges water to tailrace 7 places of personnel, thereby reduced potential security threat, reduced working strength of workers yet operating personnel.
On the sidewall of plenum chamber 8, be connected with hole sealing tube 13; The position that hole sealing tube 13 is connected with plenum chamber 8 is positioned at the middle part of plenum chamber 8 height; Can make like this from down to wearing layer hole 1 in water, the slag of extraction enough spaces, whereabouts are arranged, help water, slag separates with gas fully.Connect retaining wall floral tube 2 away from the end of plenum chamber 8 through union at hole sealing tube 13, evenly laid through hole on the tube wall of retaining wall floral tube 2.Can select the joint number of retaining wall floral tube 2 according to the thickness in coal seam 6, each saves between the retaining wall floral tube through pipe collar 5 series connection.The two joint retaining wall floral tubes of having connected in the present embodiment, and a joint retaining wall floral tube 4 one ends of least significant end are the taper cecum.Also comprise air line 11, an end of air line 11 is used for being connected with pressing wind regime, and the other end connects ventilating pipe 3, and ventilating pipe 3 is connected with the retaining wall floral tube 4 with taper cecum away from an end of air line 11.Electromagnetic valve 12 is set on air line 11; Through setting the time of electromagnetic valve 12 break-makes; Control and press wind time of delivery and delivery interval, realize pressing the interval of wind to carry, press wind to carry at interval and both satisfied in the work pressing the demand of wind; Can not cause adverse influence yet, also help energy conservation the gas purity of extraction.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
- Under the colliery to wearing a layer hole extraction extinction method, it is characterized in that, comprise the steps:1) adopt the mode of hydraulic flushing in hole to dig down in the place ahead of coal mining activity face or driving face to wearing a layer hole;2) digging the following hole sealing tube and the ventilating pipe of in wearing layer hole, descending of getting well; Said hole sealing tube and said ventilating pipe all are deep into down to the bottom of wearing layer hole; Said hole sealing tube is positioned at down and is connected with the retaining wall floral tube to wearing a layer end of bottom, hole, and said retaining wall floral tube and said ventilating pipe are interconnected;3) to carrying out guard aperture, sealing of hole operation to wearing layer hole down, make said hole sealing tube and said ventilating pipe and between the hole wall of wearing layer hole, be in sealing state down;4) outwards aspirate through said hole sealing tube; Carry pressure wind to the bottom of wearing layer hole downwards through said ventilating pipe.
- 2. to wearing a layer hole extraction extinction method, it is characterized in that the hydraulic pressure of said hydraulic flushing in hole is between 10MPa-15MPa under the colliery according to claim 1.
- 3. to wearing a layer hole extraction extinction method, it is characterized in that the pressure of said pressure wind is between 0.8MPa-1.2MPa under the colliery according to claim 1 and 2.
- 4. to wearing a layer hole extraction extinction method, it is characterized in that under the colliery according to claim 3 that said pressure wind is to carry at interval, the time of delivery of at every turn pressing wind is 3 minutes, and be 57 minutes blanking time.
- 5. under the colliery according to claim 4 to wearing a layer hole extraction extinction method; It is characterized in that; To wearing layer hole and being connected with gas-liquid separator, said gas-liquid separator will be from carrying out automatic gas-liquid separation to wearing layer material that extract out the bottom, hole down under expose the upper end of said hole sealing tube.
- 6. to wearing a layer hole extraction extinction method, it is characterized in that under the colliery according to claim 5, adopt cement mortar to fill sealing of hole in the said sealing of hole operation.
- Under the colliery to wearing a layer hole extraction extinction device; It is characterized in that; Comprise gas-liquid separator and ventilating pipe, the top of said gas-liquid separator is provided with exhaust opening, the bottom is provided with leakage fluid dram, is connected with the exhaust passage on the said exhaust opening; Be connected with tailrace on the said leakage fluid dram; Be connected with hole sealing tube on the sidewall of said gas-liquid separator, said hole sealing tube is connected with the retaining wall floral tube away from an end of gas-liquid separator, and an end of said ventilating pipe is communicated with the retaining wall floral tube, the other end is used for is connected with pressing wind regime.
- 8. to wearing a layer hole extraction extinction device, it is characterized in that said tailrace is automatic tailrace under the colliery according to claim 7.
- According under claim 7 or the 8 described collieries to wearing a layer hole extraction extinction device, it is characterized in that, said ventilating pipe through air line with the pressure wind regime be connected, said air line is provided with electromagnetic valve.
- 10. to wearing a layer hole extraction extinction device, it is characterized in that said exhaust passage is provided with the control gate valve under the colliery according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100233544A CN102606190A (en) | 2011-01-20 | 2011-01-20 | Method and device for using downward crossing hole to eliminate outburst in mining of coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100233544A CN102606190A (en) | 2011-01-20 | 2011-01-20 | Method and device for using downward crossing hole to eliminate outburst in mining of coal mine |
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| CN102606190A true CN102606190A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100233544A Pending CN102606190A (en) | 2011-01-20 | 2011-01-20 | Method and device for using downward crossing hole to eliminate outburst in mining of coal mine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233710A (en) * | 2013-04-16 | 2013-08-07 | 杜志刚 | Environment-friendly gas extracting method capable of extracting gases and circularly injecting water simultaneously |
| CN103277131A (en) * | 2013-05-28 | 2013-09-04 | 神华集团有限责任公司 | Gas separating device and gas separating method |
| CN105333904A (en) * | 2015-11-11 | 2016-02-17 | 山东科技大学 | Coal rock upward borehole gas parameter measurement method |
| CN105333905A (en) * | 2015-11-11 | 2016-02-17 | 山东科技大学 | Coal rock upward borehole gas parameter measurement system |
| CN105781606A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for sealing large-dip-angle downward coal-seam-penetrating gas extraction-drainage drill hole |
| CN106499353A (en) * | 2017-01-06 | 2017-03-15 | 淮南矿业(集团)有限责任公司 | The device of armlet sleeve pipe in a kind of fixed drilling |
| CN106761903A (en) * | 2016-12-27 | 2017-05-31 | 山西晋城无烟煤矿业集团有限责任公司 | The compound crossing-hole gas extraction method of weak seam |
| CN108625820A (en) * | 2018-06-13 | 2018-10-09 | 淮南矿业(集团)有限责任公司 | To hole hole sealing device and its method for sealing under a kind of gas pumping |
| CN111852546A (en) * | 2020-07-20 | 2020-10-30 | 河南工程学院 | Underground extraction outburst elimination device and operation method thereof |
| CN113047810A (en) * | 2021-04-30 | 2021-06-29 | 成都和拓土木工程有限公司 | Multifunctional grouting nozzle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103233710A (en) * | 2013-04-16 | 2013-08-07 | 杜志刚 | Environment-friendly gas extracting method capable of extracting gases and circularly injecting water simultaneously |
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| CN105781606A (en) * | 2016-03-02 | 2016-07-20 | 重庆大学 | Method for sealing large-dip-angle downward coal-seam-penetrating gas extraction-drainage drill hole |
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| CN106499353A (en) * | 2017-01-06 | 2017-03-15 | 淮南矿业(集团)有限责任公司 | The device of armlet sleeve pipe in a kind of fixed drilling |
| CN108625820A (en) * | 2018-06-13 | 2018-10-09 | 淮南矿业(集团)有限责任公司 | To hole hole sealing device and its method for sealing under a kind of gas pumping |
| CN111852546A (en) * | 2020-07-20 | 2020-10-30 | 河南工程学院 | Underground extraction outburst elimination device and operation method thereof |
| CN111852546B (en) * | 2020-07-20 | 2021-11-02 | 河南工程学院 | Underground extraction outburst elimination device and operation method thereof |
| CN113047810A (en) * | 2021-04-30 | 2021-06-29 | 成都和拓土木工程有限公司 | Multifunctional grouting nozzle |
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Application publication date: 20120725 |